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Date:      Fri, 06 Mar 1998 21:11:24 -0800 (PST)
From:      Simon Shapiro <shimon@simon-shapiro.org>
To:        Mike Smith <mike@smith.net.au>
Cc:        Karl Denninger <karl@mcs.net>, lada@ws2301.gud.siemens.at, chat@FreeBSD.ORG, julian@whistle.com, wilko@yedi.iaf.nl, dmlb@ragnet.demon.co.uk, Terry Lambert <tlambert@primenet.com>, Chuck Robey <chuckr@glue.umd.edu>
Subject:   Re: Old farts blathering (was Re: SCSI Bus redundancy... )
Message-ID:  <XFMail.980306211124.shimon@simon-shapiro.org>
In-Reply-To: <199803070440.UAA02245@dingo.cdrom.com>

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On 07-Mar-98 Mike Smith wrote:
 ...

> Hmm, I prefer the Varta 2.2Ah cells actually.  The Sanyo ones have lots 
> of "these are great" legends floating around, but the "really tricky" 
> charger you're describing is basically just a box with a DC regulator 
> and an energy polariser crystal, and I still never saw them create 
> energy from nowhere.

Not quite.  A peak-detector charger actually pushes a lot of current into
the battery very quickly, with amazingly little damage.  Energy is not
created from nowhere, but comes from your car battery, in the parking lot.

> But I 'fess that most of the little driving I did was off-road, where 
> capacity per weight matters more than peak output.  I used to think 
> those weenies in the shopping centre carparks on weekends were just 
> that.  (Hmm, I guess over here you can't do that sort of thing in that 
> sort of carpark, what with 7-day shopping and all.)

I switched to gas (alcohol) 1/8 scale some ten years ago.  Like the noise
and the smell :-)  
 
...

>> Yup.  The WDT board I am polishing the driver for alarms for low-voltage
>> on
>> a new, EXPENSIVE, rackmount CPU box.  No, the WDT is not broken, but the
>> 5V
>> is really 4.73.  You are right, you have to try hard to mess up...
> 
> Have you tried adjusting the output on the supply?  Like I said, PC 
> manufacturers are pretty stingy; it was probably factory-set at about 
> 35C and 90% RH with no more than a few minutes runtime.

I just found this out minutes ago.  Then I dod not recollect any
adjustments in the power supply, then there is the obligatory excuse
wto not honor the warranty sticker on the power supply.  The n there is my
boss who said ``you are software, not hardware.  Let the hardware real
engineers do hardware'' and who am I to make a lier out of such an
important executive?


----------


Sincerely Yours, 

Simon Shapiro
Shimon@Simon-Shapiro.ORG                      Voice:   503.799.2313

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